Liquid-fuel burner



June Q 1,542,528-

w. P. RUDKIN LIQUID FUEL BURNER Filed sept. 23, 1924 z sheets-sheet 1 mit Meo Julie 16, 1-925. 1,542,528

w P RDKm LIQUID FUEL BURNER Filed sept. 25. 1924 2 sheets-'sheer 2 Patented June 16, 1925.`

l 'UNLTED STATES WILLIAIMVPAUL OF OKLAHOMA CITY, OKLAHOMA.

LIQUID-FUEL BUR-NER.

Application filed September 23, 1924. Serial No. 739,329.

T 0 all whom it may` concern.'

Be it known that I', VILLIAM P. RUDKIN, a citizen of the United. States, residing at Oklahoma City, in the county of Gklahoma and: State of- Oklahoma, have invented certain new and useful Improvements in Liquid-FuelxBurners, of, whichl the following is n' of the invention will be hereinafter set forth a specification. p

This invention relates to a liquid fuel burner, and particularly to a construction adapted for burning loW grade fuel oils for heating purposes.

In fuel burners the: use of a lovv grade oil when confined; and vaporized quickly clogs or chokes the burner7 due to the presence of a large percentage of carbon contentland they deposit of such` carbon in thevaporizing ofthe oil at the time olf` ignition. Further it has been foundiv desirablefandf more efficient to introduce the air necessary for proper combustion at a point above the'heated'fliquid fuel so. that it mixes` With the gas or vapor rising' therefrom and this mixture is utilizedr to heat the body' of the fuel in the` I burner by means of heat conductors exposed to the flame and extending into the fuel body. A

lin usual Vconstructions of fuel burners the heating capacity thereof is limited and I provide for a variation of such capacity` by the use of independent conductor units through which the' air is introducedto the fuel, and such a construction permitsthe use either of aliquid fuel or the introduction of a gaseous fuel'7 such asV natural gas, into the fire box so that the conductor units ac t to superheat such gaseous fuel and also the air passing through the conductor into contact with the fuel. I

The invention has for van object to provide a novel and improved!.construction of fuel burner comprising a fire box having a chamber at itsl lower portion into which the fuel is introduced and"a`conductor extending to such chamber and having an airpinlet through the base of the' lire box to secure an admixtureof the air and fuel at la point above the bottom of the box.

A further object of the invention is to provide a construction of'fire box having a liquid fuel chamber at itsbase in connection with an upright conductor provided with an air intake communicating With the fire box at a point above thefuel chamber.

Another object of theinvention is to pro-` vide an improved form of conductor comprising a bodv having a tubular lower portion and discharge openings` above the same,

together i'vith longitudinal rfins extending upward from the base ofthe conductor so as to conduct heat to the body upon which the conductor is mounted.

Other and further objects andadvantages `Likereference charactersv` designate corresponding 1warts throughout the several iigures of the drawing.

The invention is adapted for application to any desired constructiony or configuration of fire box and the number `of conductors used in such a box may be varied at will dependent upon the capacity or degree offbeat desired to be developed from the burner. In the form shown in Figure 1 the fire'boxY 1U is of substantially rectangularform and the bottom or base 11 thereof provided' with a series of air inlet openings 12 adapted to receive the tubular portions 13 of the conductors 14. These conductors comprise vcrtical standards and are formed with air discharge slots or apertures 15 intermediate their ends.

For the purpose of conveying the heat generated by the Haine of the burner to` the base of the lire box containing the fuel, each of the vconductors is provided with a series of blades or fins 16 extending radially therefrom and terminating at the tubular portion 13 thereof. `This'portion is also provided with a shoulder 17 resting upon the 'base 11 of the lire box so that the heat conducted by theblades 1G is conveyed to such body and maintains the same at a high teni! air through the openings l5 at a point above said level where it will be mixed with the vaoor or gas arising from the heated oil. For the purpose of feeding the fuel a conducting oipe 18 extends through the base ll of the fire box and is provided with a suitable controlling` valve 19.

The feed of air to the burner may be controlled and in the form shown in Figure l a natural draft is utilized which is supplemented by the heated condition of the conductors which causes the air to rapidly enter the same. lhere the burner is used for steam or other heating` requiring increased temperature a forced draft may be utilized as shown by the modified form of the invention in Figure 4. In this construction the fire box 2() is formed with a base 21 upon which the conductors 22 are mounted, these being of the construction before described, while the fuel is fed to the lower portion of the box by a pipe 23 and the air conducted to the tubular inlets 24 of the conductors by means of a casing provided with a suitable forced draft device as indicated at 26.

The general operation of the burner will be apparent from the foregoing description from which it will be seen that a level of oil is maintained in the lower portion ofV the fire box which is highly heated by conduction from the conductors so that as the vapor or gas rises from the oil it is mixed with the heated air passing through the conductor unit so that a` combustible fuel mixture is secured at a level above the oil which highly heats the upper solid portion of the conductor and the fins or blades there of'conduct such heat downward to the body of fuel.

While the invention is particularly adapted for use with a low grade fuel oil which may be thus volatilized without incurring the collection of carbon to clog and interfere with the eflicient action thereof, still the construction is capable of use in connection with a gaseous fuel such as natural gas which if introduced into the lower portion of the fire box will mix with the air and both being heated form a highly combustible mixture. The lire box may also be of any desired contiguration or size dependent upon the heating capacity desired from the burner and the conductors being separate units may be applied in the required num ber for securing the proper volatiliZat-iou of the fuel introduced into the box. It will therefore be seen that the invention presents a simple, efficient and economically constructed form of liquid fuel burner designed to efhciently use the cheaper lower grades of fuel oil.

While the details of construction of the fire box and conductor have been speciiical- 1y shown and. described, the invention is not confined thereto as changes and alterations may be made therein without depart ing from the spirit of the invention as defined by the appended claims.

Having thus described` my invention, whafV I claim as new and desire to secure by lietters Patent is:

l. A liquid fuel burner comprising a tire box forming a fuel chamber at its lower portion and a body provided with conducting fins extending into said chamber and having an air inlet through the base of the tire box.

2. A liquid fuel burner comprising a lire box i'iorn'iing a fuel chamber at its lower` portion and a heat conductor extending into said chamber and having an `air inlet through the base of the lire box, said conductor being provided with longitudinal conducting bla-des extending into said chamber.

8. A liquid fuel burner comprising a fire box forming a fuel chamber at its lower portion and a body provided with conducting tins extending into said chamber and having an air inlet through the base of the fire box7 said body having air discharge openings disposed above the liquid fuel level within said chamber.

4. A liquid fuel burner comprising a fire box having an apertured base, a heat conductordisposed therein with a tubular portion located in said aperture and extending upward from said base, and radiating conducting blades extending from said tubular portion to the upper part of the conductor.

5. A liquid fuel burner comprising a tire box'having an apertured base, a heat conductor disposed therein with a tubular por-- tion located in said aperture and extending upward from said base and radiating couducting blades extending from said tubular portion to the upper part of the conductor, said conductor being provided with air discharge openings disposed intermediate of said blades and above said tubular portion.

6. A fuel burner comprising an enclosed. tire box having an apertured base, a body having heat conducting fins mounted in said box and provided withV a. base to establish a fuel level and an air inlet opening therein extending through said. aperture7 and means for feeding and controlling the dow of fuel to said fire box.

7. A fuel burner comprising an enclosed lire box having an apertured base, a bod)7 having heat conducting fins mounted in said box and provided with a base to establish a fuel level and an air inlet opening therein extending through said aperture, means for feeding and controlling the flow of fuel to said fire box, and means for effecting a forced draft of air through said body.

8, A liquid, Vfuel burner comprising an enclosed tire boX having a plurality of apertures through the base thereof, and a plurality of heat conducting standards eac-h having a tubular base seated upon said aperture-s to form an air intake and provided with discharge openings above said base disposed intermediate a plurality of conducting fins.

9. A heat Conductor for fuel burners com prising a body having a tubular base and longitudinally disposed discharge slots com munie-ating therewith and disposed intermediate a plurality of conducting fins ex tending between said base and the upper solid portion of the body.

'10. A heat conductor for fuel b-urners comprising a body having a tubular base and discharge slots communieating;` therewith and disposed between said base and the upper solid portion of the body, said body being formed with radially disposed fins connecting the base and upper portions.

In testimony whereof I aiX my signature.

WILLIAM PAUL RUDKIN. 

